It makes sense comparing Polk Audio SIGNA S2 vs Samsung HW-LST70T because they both are able to give some premium features. Based on our rating, SIGNA S2 has a total rating of 5 out of 10 versus 6.4 for HW-LST70T. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and volume down, volume up, power, source, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Polk Audio SIGNA S2 has 2.1 versus 3.0 for the Samsung HW-LST70T. Only the Samsung HW-LST70T has a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 6 rating of 10 for their audio features and specs. Spotify support is available on the HW-LST70T.
Only the Samsung HW-LST70T can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Each soundbar has 1/0 HDMI inputs/outputs. Only the SIGNA S2 supports HDMI Audio Return Channel (ARC). For connectivity, each of the soundbars received a rating of 6/10. App control is available for the HW-LST70T. A built-in microphone is present only on the HW-LST70T. Multi-room is only available for the Samsung HW-LST70T.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Polk Audio SIGNA S2 got a rating of 4, and Samsung HW-LST70T 5 out of 10.